Income Taxes - Reconciliation of Unrecognized Tax Position (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Unrecognized Tax Benefits [Roll Forward]
Beginning Balance	$ 56,334	$ 41,772	$ 30,404
Tax Positions taken in prior year, gross increases	1,082	931	228
Tax Positions taken in prior year, gross decreases	(330)	0	0
Tax Positions taken in current year, gross increases	11,280	13,650	12,415
Tax Positions taken in current year, gross decreases	0	(19)	(891)
Lapse of Statute of Limitations	0	0	(384)
Settlements	(209)	0	0
Ending Balance	$ 68,157	$ 56,334	$ 41,772